Latitudinal patterns of microplastic contamination in remote areas

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121553 - 121553

Published: April 1, 2025

Language: Английский

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Study on the Mass Concentration Distributions of Marine Microplastics in Estuaries and Coastal Areas

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1136 - 1136

Published: April 10, 2025

Marine microplastics are a global environmental issue, and understanding their distributions in estuaries coastal areas is critical prerequisite for the effective sustainable management of microplastic pollution. Owing to lack methods that exist quantifying content, characterizing distribution difficult. The mass concentration an objective indicator reflects distribution. Therefore, formula calculating proposed through parameters number concentration, size, mesh addition proportions particles with different sizes shapes. On basis large amount existing measured data, concentrations calculated. It can be concluded polypropylene (PP; 72%) polyethylene (PE; 67%) most abundant ocean. Additionally, marine more common (102–103 mg/L) than open sea (0–10 mg/L). maximum surface water approximately 8.0 g/L. Moreover, pollution has significantly increased surrounding sewage treatment plants aquaculture farms.

Language: Английский

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Microplastics in Our Waters: Insights from a Configurative Systematic Review of Water Bodies and Drinking Water Sources

Microplastics, Journal Year: 2025, Volume and Issue: 4(2), P. 24 - 24

Published: May 7, 2025

Microplastics (MPs), defined as plastic particles smaller than 5 mm, are an emerging global environmental and health concern due to their pervasive presence in aquatic ecosystems. This systematic review synthesizes data on the distribution, shapes, materials, sizes of MPs various water sources, including lakes, rivers, seas, tap water, bottled between 2014 2024. Results reveal that river constitutes largest share studies MP pollution (30%), followed by lake (24%), sea (19%), (17%), (11%), reflecting critical roles transport accumulation. Seasonal analysis indicates concentrations peak wet season (38%), dry (32%) transitional (30%) seasons. Spatially, China leads research globally USA (7.8%) India (5.9%). predominantly composed polyethylene (PE), polypropylene (PP), terephthalate (PET), with fibers fragments being most common shapes. Sub-millimeter (<1 mm) dominate globally, significant variations driven anthropogenic activities, industrial discharge, factors such rainfall temperature. The study highlights gaps understanding long-term ecological impacts MPs, emphasizing need for standardized methodologies, improved waste management, innovative mitigation strategies. underscores urgency addressing microplastic through collaboration stricter regulatory measures.

Language: Английский

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Seasonal distribution of Microplastics and associated Ecological risks in a Semi-Arid Freshwater ecosystem in India

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126430 - 126430

Published: May 1, 2025

Language: Английский

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Microplastic Particles and Fibers in Seasonal Ice of the Northern Baltic Sea

Toxics, Journal Year: 2024, Volume and Issue: 12(8), P. 542 - 542

Published: July 26, 2024

Microplastic pollution is a pervasive issue, with remarkably high concentrations observed even in the most remote locations such as Arctic sea ice and snow. The reason for large microplastic abundances still speculative applies mainly to saline or freshwater conditions. In this study, we investigated seasonal core samples collected March 2021 from northern Baltic Sea (Gulf of Bothnia) their distributions. characterized by low salinity can be ice-covered up six months annually. Microplastics were analyzed melted using an adsorption technique Raman microscopy identify abundances, colors, shapes, sizes calculate masses. Due strong dynamic layer repeated melting freezing processes during formation, no discernible trends masses, polymer types throughout length. average abundance (±SD) was determined 22.3 ± 8.6 N L

Language: Английский

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Impact of Diatomit on the Transport Behavior of Unmodified and Carboxyl-modified Nanoplastics in Saturated porous media

Environmental Pollution, Journal Year: 2024, Volume and Issue: 359, P. 124758 - 124758

Published: Aug. 16, 2024

Language: Английский

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Assessment of microplastics in highland rock salts of Northern Borneo

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 368, P. 122207 - 122207

Published: Aug. 23, 2024

Mountain salts produced from the highland region in NE Sarawak have a market value and also provide basic income to communities. During salt-making process, microplastics (MPs) may enter into commercial table various sources, which has not been explored yet. Hence, current research investigates presence of MPs rock saline water two different locations (L1 L2) Sarawak. Among brine salt samples analysed, highest concentrations were detected samples. It revealed that both concentration occurring within size range 1-1000 μm. Transparent are most common colour observed samples, followed by white, blue, red, black. The prevalent shapes fibers, account for almost 47% 87% Based on ATR-FTIR study, polyethylene (PE) is polymer polypropylene (PP), polystyrene (PS), terephthalate (PET). In PP dominating polymer, PE PS. Through SEM microphotographs, fiber-type smooth surfaces, fragment-type rough edges, sheet-type layered surfaces. EDX analysis carbon (C) oxygen (O) abundant elements, aluminium (Al) sodium (Na) MPs. results, it inferred mainly sourced stages production. This preliminary study shed light characteristics this region. outcomes could support sustainable management plans improve quality enhance value.

Language: Английский

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Ảnh hưởng của kỹ thuật lấy mẫu đến tính chất vi nhựa vùng cửa sông, ven biển: Thí điểm tại cửa Hới, tỉnh Thanh Hóa

Journal of Hydro-meteorology, Journal Year: 2024, Volume and Issue: 10(766), P. 43 - 52

Published: May 31, 2024

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The abundance and analytical characterization of microplastics in the surface water of Haryana, India

Microscopy Research and Technique, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Microplastic (MP) contamination has become a serious environmental concern that affects terrestrial environments, aquatic ecosystems, and human health. The current study assesses the presence, abundance, morphology of MPs present in surface water Rohtak district, Haryana, India, which is rapidly undergoing industrialization. While morphological studies were conducted through stereo microscopy field emission-scanning electron (FE-SEM), elemental composition polymers was analyzed attenuated total reflectance-Fourier transform infrared (ATR-FTIR). results revealed significantly contaminated by polyethylene, polypropylene, polystyrene. Moreover, abundance found to be 16-28 particles/L with an average value 23 particles/L. Most had fibrous specifics being, fibers (43.9%), fragments (23.7%), films (17%), pellets (15.4%). exhibited size range 0.61-4.87 mm, measured at 2.03 ± 0.04 mm. Also, MP pollution load index values for bodies below 10, indicating low risk category. Though currently designated as "low risk," it important mitigation strategies brought over this juncture further prevent deterioration quality water. Thus, not only intends bring forth impact activities, industrial waste, open waste dumping, inadequate municipal management practices on increasing concentration but also highlights sustainable alternatives address emerging pollutant urban systems. For prevention, implementation stringent regulations on-site plastic segregation critical component preventing disposal bodies. RESEARCH HIGHLIGHTS: particles/L, district fall into hazard categories less than 10. overall water, across all five areas, based color order: white/transparent (39.1%), black (15%), gray (9.1%), green (8.7%), blue (7.8%), red orange (6.3%), yellow (6.1%). dominant polyethylene (PE) (42%) polypropylene (41%) determined FTIR spectroscopy.

Language: Английский

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Immunotoxic Response of Bio-based Plastic on Early Life Stage Zebrafish (Danio rerio): A Safe Alternative to Petroleum-based Plastics?

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135846 - 135846

Published: Sept. 17, 2024

Language: Английский

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